| Tech | Version |
| -------------------- | ------- |
| @material-ui/pickers | 3.2.8 |
| material-ui | 4.8.2 |
| TypeScript | |
| React | 16.12 |
| Browser | chrome |
| Peer library | @date-io/moment | |
Updated @date-io/moment to version 2.0.1
get back getYearText function
utils.getYearText is not a function
Reverted back to "@date-io/moment": "^1.3.13" and everything works fine

Duplicate of #1440
This happened to me when I installed the latest version of @date-io/dayjs with dayjs. I was able to fix it by instead installing version 1.x of date-io, as mentioned in the docs:
$ npm install @date-io/[email protected]
This will install the latest version under the 1.x series.
Most helpful comment
This happened to me when I installed the latest version of
@date-io/dayjswithdayjs. I was able to fix it by instead installing version 1.x of date-io, as mentioned in the docs:This will install the latest version under the 1.x series.